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  • 1
    Electronic Resource
    Electronic Resource
    Evaluation of phase transition temperature of liposomes by using tautomerism of benzoylacetoanilide and effects of cholesterol (1991)
    s.l. : American Chemical Society
    Langmuir 7 (1991), S. 918-922 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00053a018
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  • 2
    Electronic Resource
    Electronic Resource
    Elevated plasma nilvadipine concentration after single and chronic oral administration to patients with chronic liver disease (1992)
    Springer
    European journal of clinical pharmacology 42 (1992), S. 475-479 
    Details
    ISSN: 1432-1041
    Keywords: Calcium channel blocker ; Nilvadipine ; blood pressure ; liver disease ; pharmacokinetics ; pharmacodynamics ; cirrhosis ; hepatitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Fourteen normotensive patients with liver disease (6 with cirrhosis and 8 with chronic hepatitis) and 7 healthy volunteers were given a single oral dose of nilvadipine 2 mg. In addition, nilvadipine 4 mg was administered orally twice daily for several months to 6 hypertensive patients with mild liver dysfunction and 18 hypertensives with normal liver function. A significant increase in plasma nilvadipine was found in the patients with cirrhosis as compared both to the normal and chronic hepatitis subjects; the time to peak concentration was similar among the three groups. The peak plasma nilvadipine concentration was closely correlated both with the serum albumin level and the retention of indocyanine green. Changes in blood pressure, pulse rate and various vasoactive hormones following a single oral dose of nilvadipine did not differ between the groups. Thus, an increase in plasma nilvadipine relative to the level in normal subjects was demonstrated in patients with cirrhosis following a single oral dose, as well as in patients with slight liver dysfunction following long-term oral administration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00314853
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  • 3
    Electronic Resource
    Electronic Resource
    Solvent isotope effect on mobilities of potassium and chloride ions in water at high pressure. III. A high temperature study (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 92 (1990), S. 2548-2552 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Limiting molar conductances of the K+ and Cl− ions in heavy and light water have been determined at 45 °C as a function of pressure up to 2000 kgf cm−2 (1 kgf cm−2 =0.9807×105 Pa) from the measured conductances and transference numbers of KCl. The residual friction coefficients (Δζobs ) of the K+ and Cl− ions obtained by using their limiting molar conductances and the bulk viscosity of solvent are compared up to 1000 kgf cm−2 with the corresponding values (ΔζHO ) predicted by the Hubbard–Onsager dielectric friction theory. As predicted, Δζobs for the cation in H2 O is smaller than that in D2 O and slightly decreases with increasing pressure, while its value in D2 O is almost invariant in the pressure range studied. The failure of the continuum theory in D2 O indicates that the effect of the open structure of water on the cation migration cannot be neglected even at 45 °C because of stronger hydrogen bonds in D2 O than in H2 O. For the anion, on the other hand, the continuum theory shows more serious limitations: (i) Δζobs (Cl−) in H2 O is not smaller than that in D2 O even at 45 °C with a large difference at high pressures and (ii) Δζobs (Cl−) becomes negative in both types of water at high pressures. The difference in Δζ(Cl−) between theory and experiment at 45 °C, however, becomes much smaller than that at lower temperatures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.457947
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  • 4
    Electronic Resource
    Electronic Resource
    Concentration of monoamines and their metabolites in the cerebrospinal fluid from patients with senile dementia of the Alzheimer type and vascular dementia of the Binswanger type (1992)
    Springer
    Journal of neural transmission 4 (1992), S. 69-77 
    Details
    ISSN: 1435-1463
    Keywords: Dopamine ; norepinephrine ; cerebrospinal fluid ; senile dementia of the Alzheimer type ; vascular dementia of the Binswanger type
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We measured the concentrations of total (conjugated and unconjugated) monoamines (dopamine, DA; norepinephrine, NE) and monoamine metabolites (homovanillic acid, HVA; 3-methoxy-4-hydroxyphenyleneglycol, MHPG; 5-hydroxyindoleacetic acid, 5-HIAA) in the cerebrospinal fluid (CSF), using HPLC-ECD in 11 patients with Alzheimer's disease (AD) or senile dementia of the Alzheimer type (SDAT), 17 patients with vascular dementia of the Binswanger type (VDBT), and 15 controls. In AD/SDAT, there was a significant decrease in the DA concentration and a significant increase in the MHPG concentration. The average NE concentration was not altered, but significantly increased with the progression of intellectual disability. There were no significant changes in HVA and 5-HIAA concentrations. Patients with VDBT showed a significant increase in the DA concentration and a significant decrease in HVA and 5-HIAA concentrations. The DA concentrations increased significantly with the progression of dementia and ventricular enlargement. These results indicate that the noradrenergic and dopaminergic system in particular are altered in AD/SDAT, while the dopaminergic and serotonergic systems are mainly involved in VDBT.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02257623
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  • 5
    Electronic Resource
    Electronic Resource
    Monoamine metabolism in the cerebrospinal fluid in Parkinson's disease: relationship to clinical symptoms and subsequent therapeutic outcomes (1993)
    Springer
    Journal of neural transmission 5 (1993), S. 17-26 
    Details
    ISSN: 1435-1463
    Keywords: Parkinson's disease ; monoamines ; cerebrospinal fluid ; L-dopa ; freezing of gait
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We correlated monoamine concentrations in the cerebrospinal fluid from de novo (untreated) patients with Parkinson's disease with their clinical symptoms and therapeutic outcome after two years of L-dopa with/without other anti-parkinson medication. A significant correlation was found between the severity of some parkinsonian symptoms and the reduction in particular monoamines: Hoehn and Yahr's stage with dopamine, norepinephrine, and homovanillic acid: rigidity with dopamine; akinesia with dopamine and norepinephrine; freezing of gait with norepinephrine; and dementia with dopamine and homovanillic acid. Tremor had no correlations with the concentrations of the monoamines measured. Patients with dementia had a significantly increased level of epinephrine concentrations. Insufficient therapeutic responses of invidividual symptoms were associated with significantly decreased concentrations of particular monoamines before treatment: Hoehn and Yahr's stage with norepinephrine and epinephrine; akinesia with homovanillic acid and 5-hydroxyindoleacetic acid; and freezing of gait with dopamine, norepinephrine, homovanillic acid, and 5-hydroxyindoleacetic acid. These results suggest a significant correlation between the reduction in particular monoamines and the severity of some parkinsonian symptoms and their subsequent responses to L-dopa.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02260911
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  • 6
    Electronic Resource
    Electronic Resource
    Ecdysteroid binding sites in gastrolith forming tissue and stomach during the molting cycle of crayfishProcambarus clarkii (1992)
    Springer
    Histochemistry and cell biology 98 (1992), S. 1-6 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The distribution of ecdysteroid binding sites in the stomach and gastrolith disc tissue of cryafish (Procambarus clarkii) was examined in relation to the molting stage by thaw-mount autoradiography. The radiolabeled hormone analogue ponasterone A (25-deoxy-20-hydroxyecdysone) was used. Ecdysteroid binding sites were demonstrated only in certain molting stages, the small gastrolith period and the aftermolt stage. In gastrolith epithelium, ponasterone A binding sites first appeared in the cytoplasm, and then in the nuclei and cytoplasm. In the stomach epithelium, many nuclear binding sites were detectable during the period of gastrolith secretion. These periodical changes in specific ponasterone A binding when correlated with the molting stages clearly show that ecdysteroids may function as an initiator for gastrolith formation and reabsorption. The findings also suggest that ecdysteroids control calcium transport in the stomach epithelium. The time-related and functional differences of cytoplasmic and nuclear concentration of ecdysteroid receptors indicate the presence of cytoplasmic and nuclear receptors associated with specific actions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00716931
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  • 7
    Electronic Resource
    Electronic Resource
    Antifogging effect of cellulose films by chemical modification of the surface using nonionic fluorocarbon surfactant (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 39 (1990), S. 967-977 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Wettability and antifogging effect on the surface of the transparent thin film of cellulose esters were studied by fixing chemically nonionic fluorocarbon surfactants on the film surface and were compared with the properties of the surface fixed with the corresponding nonionic hydrocarbon surfactants. These antifogging properties on the surfaces covered by the monomolecular layer of fluorocarbon surfactant were found to be more excellent than those of the nonionic hydrocarbon surfactants from the measurement of contact angle for water droplets and also from the data of Zisman's plots. The surface of the thin film setting in the closed chamber filled with water vapor at 60°C were confirmed to be transparent during a long time without fogging. Antifogging effect may be due to so-called double structure consisting of fluorocarbon and nonionic ethyleneoxide chains in the monomolecular layer.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1990.070390415
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